Reindent and rename identifiers in scaling-test.c
authorSøren Sandmann Pedersen <sandmann@redhat.com>
Mon, 13 Jul 2009 23:58:04 +0000 (19:58 -0400)
committerSøren Sandmann Pedersen <sandmann@redhat.com>
Mon, 13 Jul 2009 23:58:04 +0000 (19:58 -0400)
test/scaling-test.c

index 79f05ca..8899c59 100644 (file)
 
 static uint32_t lcg_seed;
 
-uint32_t lcg_rand(void)
+uint32_t
+lcg_rand (void)
 {
     lcg_seed = lcg_seed * 1103515245 + 12345;
     return ((uint32_t)(lcg_seed / 65536) % 32768);
 }
 
-void lcg_srand(uint32_t seed)
+void
+lcg_srand (uint32_t seed)
 {
     lcg_seed = seed;
 }
 
-uint32_t lcg_rand_n(int max)
+uint32_t
+lcg_rand_n (int max)
 {
-    return lcg_rand() % max;
+    return lcg_rand () % max;
 }
 
 /*----------------------------------------------------------------------------*\
- *  CRC-32 version 2.0.0 by Craig Bruce, 2006-04-29.
- *
- *  This program generates the CRC-32 values for the files named in the
- *  command-line arguments.  These are the same CRC-32 values used by GZIP,
- *  PKZIP, and ZMODEM.  The Crc32_ComputeBuf() can also be detached and
- *  used independently.
- *
- *  THIS PROGRAM IS PUBLIC-DOMAIN SOFTWARE.
- *
- *  Based on the byte-oriented implementation "File Verification Using CRC"
- *  by Mark R. Nelson in Dr. Dobb's Journal, May 1992, pp. 64-67.
- *
- *  v1.0.0: original release.
- *  v1.0.1: fixed printf formats.
- *  v1.0.2: fixed something else.
- *  v1.0.3: replaced CRC constant table by generator function.
- *  v1.0.4: reformatted code, made ANSI C.  1994-12-05.
- *  v2.0.0: rewrote to use memory buffer & static table, 2006-04-29.
+*  CRC-32 version 2.0.0 by Craig Bruce, 2006-04-29.
+*
+*  This program generates the CRC-32 values for the files named in the
+*  command-line arguments.  These are the same CRC-32 values used by GZIP,
+*  PKZIP, and ZMODEM.  The compute_crc32() can also be detached and
+*  used independently.
+*
+*  THIS PROGRAM IS PUBLIC-DOMAIN SOFTWARE.
+*
+*  Based on the byte-oriented implementation "File Verification Using CRC"
+*  by Mark R. Nelson in Dr. Dobb's Journal, May 1992, pp. 64-67.
+*
+*  v1.0.0: original release.
+*  v1.0.1: fixed printf formats.
+*  v1.0.2: fixed something else.
+*  v1.0.3: replaced CRC constant table by generator function.
+*  v1.0.4: reformatted code, made ANSI C.  1994-12-05.
+*  v2.0.0: rewrote to use memory buffer & static table, 2006-04-29.
 \*----------------------------------------------------------------------------*/
 
 /*----------------------------------------------------------------------------*\
- *  NAME:
- *     Crc32_ComputeBuf() - computes the CRC-32 value of a memory buffer
- *  DESCRIPTION:
- *     Computes or accumulates the CRC-32 value for a memory buffer.
- *     The 'inCrc32' gives a previously accumulated CRC-32 value to allow
- *     a CRC to be generated for multiple sequential buffer-fuls of data.
- *     The 'inCrc32' for the first buffer must be zero.
- *  ARGUMENTS:
- *     inCrc32 - accumulated CRC-32 value, must be 0 on first call
- *     buf     - buffer to compute CRC-32 value for
- *     bufLen  - number of bytes in buffer
- *  RETURNS:
- *     crc32 - computed CRC-32 value
- *  ERRORS:
- *     (no errors are possible)
+*  NAME:
+*     compute_crc32() - computes the CRC-32 value of a memory buffer
+*  DESCRIPTION:
+*     Computes or accumulates the CRC-32 value for a memory buffer.
+*     The 'in_crc32' gives a previously accumulated CRC-32 value to allow
+*     a CRC to be generated for multiple sequential buffer-fuls of data.
+*     The 'in_crc32' for the first buffer must be zero.
+*  ARGUMENTS:
+*     in_crc32 - accumulated CRC-32 value, must be 0 on first call
+*     buf     - buffer to compute CRC-32 value for
+*     buf_len  - number of bytes in buffer
+*  RETURNS:
+*     crc32 - computed CRC-32 value
+*  ERRORS:
+*     (no errors are possible)
 \*----------------------------------------------------------------------------*/
 
-static uint32_t Crc32_ComputeBuf( uint32_t inCrc32, const void *buf,
-                                       size_t bufLen )
+static uint32_t
+compute_crc32 (uint32_t    in_crc32,
+                 const void *buf,
+                 size_t      buf_len)
 {
-    static const uint32_t crcTable[256] = {
-   0x00000000,0x77073096,0xEE0E612C,0x990951BA,0x076DC419,0x706AF48F,0xE963A535,
-   0x9E6495A3,0x0EDB8832,0x79DCB8A4,0xE0D5E91E,0x97D2D988,0x09B64C2B,0x7EB17CBD,
-   0xE7B82D07,0x90BF1D91,0x1DB71064,0x6AB020F2,0xF3B97148,0x84BE41DE,0x1ADAD47D,
-   0x6DDDE4EB,0xF4D4B551,0x83D385C7,0x136C9856,0x646BA8C0,0xFD62F97A,0x8A65C9EC,
-   0x14015C4F,0x63066CD9,0xFA0F3D63,0x8D080DF5,0x3B6E20C8,0x4C69105E,0xD56041E4,
-   0xA2677172,0x3C03E4D1,0x4B04D447,0xD20D85FD,0xA50AB56B,0x35B5A8FA,0x42B2986C,
-   0xDBBBC9D6,0xACBCF940,0x32D86CE3,0x45DF5C75,0xDCD60DCF,0xABD13D59,0x26D930AC,
-   0x51DE003A,0xC8D75180,0xBFD06116,0x21B4F4B5,0x56B3C423,0xCFBA9599,0xB8BDA50F,
-   0x2802B89E,0x5F058808,0xC60CD9B2,0xB10BE924,0x2F6F7C87,0x58684C11,0xC1611DAB,
-   0xB6662D3D,0x76DC4190,0x01DB7106,0x98D220BC,0xEFD5102A,0x71B18589,0x06B6B51F,
-   0x9FBFE4A5,0xE8B8D433,0x7807C9A2,0x0F00F934,0x9609A88E,0xE10E9818,0x7F6A0DBB,
-   0x086D3D2D,0x91646C97,0xE6635C01,0x6B6B51F4,0x1C6C6162,0x856530D8,0xF262004E,
-   0x6C0695ED,0x1B01A57B,0x8208F4C1,0xF50FC457,0x65B0D9C6,0x12B7E950,0x8BBEB8EA,
-   0xFCB9887C,0x62DD1DDF,0x15DA2D49,0x8CD37CF3,0xFBD44C65,0x4DB26158,0x3AB551CE,
-   0xA3BC0074,0xD4BB30E2,0x4ADFA541,0x3DD895D7,0xA4D1C46D,0xD3D6F4FB,0x4369E96A,
-   0x346ED9FC,0xAD678846,0xDA60B8D0,0x44042D73,0x33031DE5,0xAA0A4C5F,0xDD0D7CC9,
-   0x5005713C,0x270241AA,0xBE0B1010,0xC90C2086,0x5768B525,0x206F85B3,0xB966D409,
-   0xCE61E49F,0x5EDEF90E,0x29D9C998,0xB0D09822,0xC7D7A8B4,0x59B33D17,0x2EB40D81,
-   0xB7BD5C3B,0xC0BA6CAD,0xEDB88320,0x9ABFB3B6,0x03B6E20C,0x74B1D29A,0xEAD54739,
-   0x9DD277AF,0x04DB2615,0x73DC1683,0xE3630B12,0x94643B84,0x0D6D6A3E,0x7A6A5AA8,
-   0xE40ECF0B,0x9309FF9D,0x0A00AE27,0x7D079EB1,0xF00F9344,0x8708A3D2,0x1E01F268,
-   0x6906C2FE,0xF762575D,0x806567CB,0x196C3671,0x6E6B06E7,0xFED41B76,0x89D32BE0,
-   0x10DA7A5A,0x67DD4ACC,0xF9B9DF6F,0x8EBEEFF9,0x17B7BE43,0x60B08ED5,0xD6D6A3E8,
-   0xA1D1937E,0x38D8C2C4,0x4FDFF252,0xD1BB67F1,0xA6BC5767,0x3FB506DD,0x48B2364B,
-   0xD80D2BDA,0xAF0A1B4C,0x36034AF6,0x41047A60,0xDF60EFC3,0xA867DF55,0x316E8EEF,
-   0x4669BE79,0xCB61B38C,0xBC66831A,0x256FD2A0,0x5268E236,0xCC0C7795,0xBB0B4703,
-   0x220216B9,0x5505262F,0xC5BA3BBE,0xB2BD0B28,0x2BB45A92,0x5CB36A04,0xC2D7FFA7,
-   0xB5D0CF31,0x2CD99E8B,0x5BDEAE1D,0x9B64C2B0,0xEC63F226,0x756AA39C,0x026D930A,
-   0x9C0906A9,0xEB0E363F,0x72076785,0x05005713,0x95BF4A82,0xE2B87A14,0x7BB12BAE,
-   0x0CB61B38,0x92D28E9B,0xE5D5BE0D,0x7CDCEFB7,0x0BDBDF21,0x86D3D2D4,0xF1D4E242,
-   0x68DDB3F8,0x1FDA836E,0x81BE16CD,0xF6B9265B,0x6FB077E1,0x18B74777,0x88085AE6,
-   0xFF0F6A70,0x66063BCA,0x11010B5C,0x8F659EFF,0xF862AE69,0x616BFFD3,0x166CCF45,
-   0xA00AE278,0xD70DD2EE,0x4E048354,0x3903B3C2,0xA7672661,0xD06016F7,0x4969474D,
-   0x3E6E77DB,0xAED16A4A,0xD9D65ADC,0x40DF0B66,0x37D83BF0,0xA9BCAE53,0xDEBB9EC5,
-   0x47B2CF7F,0x30B5FFE9,0xBDBDF21C,0xCABAC28A,0x53B39330,0x24B4A3A6,0xBAD03605,
-   0xCDD70693,0x54DE5729,0x23D967BF,0xB3667A2E,0xC4614AB8,0x5D681B02,0x2A6F2B94,
-   0xB40BBE37,0xC30C8EA1,0x5A05DF1B,0x2D02EF8D };
-    uint32_t crc32;
-    unsigned char *byteBuf;
-    size_t i;
+    static const uint32_t crc_table[256] = {
+       0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F,
+       0xE963A535, 0x9E6495A3, 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
+       0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, 0x1DB71064, 0x6AB020F2,
+       0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
+       0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9,
+       0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
+       0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, 0x35B5A8FA, 0x42B2986C,
+       0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
+       0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423,
+       0xCFBA9599, 0xB8BDA50F, 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
+       0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, 0x76DC4190, 0x01DB7106,
+       0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
+       0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D,
+       0x91646C97, 0xE6635C01, 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
+       0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950,
+       0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
+       0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7,
+       0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
+       0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, 0x5005713C, 0x270241AA,
+       0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
+       0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81,
+       0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
+       0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, 0xE3630B12, 0x94643B84,
+       0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
+       0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB,
+       0x196C3671, 0x6E6B06E7, 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
+       0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, 0xD6D6A3E8, 0xA1D1937E,
+       0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
+       0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55,
+       0x316E8EEF, 0x4669BE79, 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
+       0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, 0xC5BA3BBE, 0xB2BD0B28,
+       0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
+       0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F,
+       0x72076785, 0x05005713, 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
+       0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242,
+       0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
+       0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69,
+       0x616BFFD3, 0x166CCF45, 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
+       0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, 0xAED16A4A, 0xD9D65ADC,
+       0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
+       0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693,
+       0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
+       0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
+    };
+    
+    uint32_t              crc32;
+    unsigned char *       byte_buf;
+    size_t                i;
 
     /** accumulate crc32 for buffer **/
-    crc32 = inCrc32 ^ 0xFFFFFFFF;
-    byteBuf = (unsigned char*) buf;
-    for (i=0; i < bufLen; i++) {
-        crc32 = (crc32 >> 8) ^ crcTable[ (crc32 ^ byteBuf[i]) & 0xFF ];
-    }
-    return( crc32 ^ 0xFFFFFFFF );
+    crc32 = in_crc32 ^ 0xFFFFFFFF;
+    byte_buf = (unsigned char*) buf;
+
+    for (i = 0; i < buf_len; i++)
+       crc32 = (crc32 >> 8) ^ crc_table[(crc32 ^ byte_buf[i]) & 0xFF];
+    
+    return (crc32 ^ 0xFFFFFFFF);
 }
 
 /* perform endian conversion of pixel data */
-static void image_endian_swap(pixman_image_t *img, int bpp)
+static void
+image_endian_swap (pixman_image_t *img,
+                  int             bpp)
 {
-    int stride = pixman_image_get_stride(img);
-    uint32_t *data = pixman_image_get_data(img);
-    int height = pixman_image_get_height(img);;
+    int       stride = pixman_image_get_stride (img);
+    uint32_t *data = pixman_image_get_data (img);
+    int       height = pixman_image_get_height (img);
     int i, j;
 
     /* swap bytes only on big endian systems */
     volatile uint16_t endian_check_var = 0x1234;
-    if (*(volatile uint8_t *)&endian_check_var != 0x12) return;
-
-    for(i = 0; i < height; i++) {
-        char *line_data = (char *)data + stride * i;
-        /* swap bytes only for 16, 24 and 32 bpp for now */
-        switch (bpp) {
-        case 16:
-            for (j = 0; j + 2 <= stride; j += 2) {
-                char t1 = line_data[j + 0];
-                char t2 = line_data[j + 1];
-                line_data[j + 1] = t1;
-                line_data[j + 0] = t2;
-            }
-            break;
-        case 24:
-            for (j = 0; j + 3 <= stride; j += 3) {
-                char t1 = line_data[j + 0];
-                char t2 = line_data[j + 1];
-                char t3 = line_data[j + 2];
-                line_data[j + 2] = t1;
-                line_data[j + 1] = t2;
-                line_data[j + 0] = t3;
-            }
-            break;
-        case 32:
-            for (j = 0; j + 4 <= stride; j += 4) {
-                char t1 = line_data[j + 0];
-                char t2 = line_data[j + 1];
-                char t3 = line_data[j + 2];
-                char t4 = line_data[j + 3];
-                line_data[j + 3] = t1;
-                line_data[j + 2] = t2;
-                line_data[j + 1] = t3;
-                line_data[j + 0] = t4;
-            }
-            break;
-        default:
-            break;
-        }
+    if (*(volatile uint8_t *)&endian_check_var != 0x12)
+       return;
+
+    for (i = 0; i < height; i++)
+    {
+       char *line_data = (char *)data + stride * i;
+       
+       /* swap bytes only for 16, 24 and 32 bpp for now */
+       switch (bpp)
+       {
+       case 16:
+           for (j = 0; j + 2 <= stride; j += 2)
+           {
+               char t1 = line_data[j + 0];
+               char t2 = line_data[j + 1];
+               line_data[j + 1] = t1;
+               line_data[j + 0] = t2;
+           }
+           break;
+
+       case 24:
+           for (j = 0; j + 3 <= stride; j += 3)
+           {
+               char t1 = line_data[j + 0];
+               char t2 = line_data[j + 1];
+               char t3 = line_data[j + 2];
+               line_data[j + 2] = t1;
+               line_data[j + 1] = t2;
+               line_data[j + 0] = t3;
+           }
+           break;
+
+       case 32:
+           for (j = 0; j + 4 <= stride; j += 4)
+           {
+               char t1 = line_data[j + 0];
+               char t2 = line_data[j + 1];
+               char t3 = line_data[j + 2];
+               char t4 = line_data[j + 3];
+               line_data[j + 3] = t1;
+               line_data[j + 2] = t2;
+               line_data[j + 1] = t3;
+               line_data[j + 0] = t4;
+           }
+           break;
+
+       default:
+           break;
+       }
     }
 }
 
@@ -199,202 +225,250 @@ static void image_endian_swap(pixman_image_t *img, int bpp)
 /*
  * Composite operation with pseudorandom images
  */
-uint32_t test_composite(uint32_t initcrc, int testnum, int verbose)
+uint32_t
+test_composite (uint32_t initcrc,
+               int      testnum,
+               int      verbose)
 {
-    int i;
-    pixman_image_t *src_img;
-    pixman_image_t *dst_img;
+    int                i;
+    pixman_image_t *   src_img;
+    pixman_image_t *   dst_img;
     pixman_transform_t transform;
-    pixman_region16_t clip;
-    int src_width, src_height;
-    int dst_width, dst_height;
-    int src_stride, dst_stride;
-    int src_x, src_y;
-    int dst_x, dst_y;
-    int src_bpp;
-    int dst_bpp;
-    int w, h;
-    int scale_x = 32768, scale_y = 32768;
-    int op;
-    int repeat = 0;
-    int src_fmt, dst_fmt;
-    uint32_t *srcbuf;
-    uint32_t *dstbuf;
-    uint32_t crc32;
-
-    lcg_srand(testnum);
-
-    src_bpp = (lcg_rand_n(2) == 0) ? 2 : 4;
-    dst_bpp = (lcg_rand_n(2) == 0) ? 2 : 4;
-    op = (lcg_rand_n(2) == 0) ? PIXMAN_OP_SRC : PIXMAN_OP_OVER;
-
-    src_width = lcg_rand_n(MAX_SRC_WIDTH) + 1;
-    src_height = lcg_rand_n(MAX_SRC_HEIGHT) + 1;
-    dst_width = lcg_rand_n(MAX_DST_WIDTH) + 1;
-    dst_height = lcg_rand_n(MAX_DST_HEIGHT) + 1;
-    src_stride = src_width * src_bpp + lcg_rand_n(MAX_STRIDE) * src_bpp;
-    dst_stride = dst_width * dst_bpp + lcg_rand_n(MAX_STRIDE) * dst_bpp;
-    if (src_stride & 3) src_stride += 2;
-    if (dst_stride & 3) dst_stride += 2;
-
-    src_x = -(src_width / 4) + lcg_rand_n(src_width * 3 / 2);
-    src_y = -(src_height / 4) + lcg_rand_n(src_height * 3 / 2);
-    dst_x = -(dst_width / 4) + lcg_rand_n(dst_width * 3 / 2);
-    dst_y = -(dst_height / 4) + lcg_rand_n(dst_height * 3 / 2);
-    w = lcg_rand_n(dst_width * 3 / 2 - dst_x);
-    h = lcg_rand_n(dst_height * 3 / 2 - dst_y);
-
-    srcbuf = (uint32_t *)malloc(src_stride * src_height);
-    dstbuf = (uint32_t *)malloc(dst_stride * dst_height);
+    pixman_region16_t  clip;
+    int                src_width, src_height;
+    int                dst_width, dst_height;
+    int                src_stride, dst_stride;
+    int                src_x, src_y;
+    int                dst_x, dst_y;
+    int                src_bpp;
+    int                dst_bpp;
+    int                w, h;
+    int                scale_x = 32768, scale_y = 32768;
+    int                op;
+    int                repeat = 0;
+    int                src_fmt, dst_fmt;
+    uint32_t *         srcbuf;
+    uint32_t *         dstbuf;
+    uint32_t           crc32;
+
+    lcg_srand (testnum);
+
+    src_bpp = (lcg_rand_n (2) == 0) ? 2 : 4;
+    dst_bpp = (lcg_rand_n (2) == 0) ? 2 : 4;
+    op = (lcg_rand_n (2) == 0) ? PIXMAN_OP_SRC : PIXMAN_OP_OVER;
+
+    src_width = lcg_rand_n (MAX_SRC_WIDTH) + 1;
+    src_height = lcg_rand_n (MAX_SRC_HEIGHT) + 1;
+    dst_width = lcg_rand_n (MAX_DST_WIDTH) + 1;
+    dst_height = lcg_rand_n (MAX_DST_HEIGHT) + 1;
+    src_stride = src_width * src_bpp + lcg_rand_n (MAX_STRIDE) * src_bpp;
+    dst_stride = dst_width * dst_bpp + lcg_rand_n (MAX_STRIDE) * dst_bpp;
+
+    if (src_stride & 3)
+       src_stride += 2;
+    
+    if (dst_stride & 3)
+       dst_stride += 2;
+
+    src_x = -(src_width / 4) + lcg_rand_n (src_width * 3 / 2);
+    src_y = -(src_height / 4) + lcg_rand_n (src_height * 3 / 2);
+    dst_x = -(dst_width / 4) + lcg_rand_n (dst_width * 3 / 2);
+    dst_y = -(dst_height / 4) + lcg_rand_n (dst_height * 3 / 2);
+    w = lcg_rand_n (dst_width * 3 / 2 - dst_x);
+    h = lcg_rand_n (dst_height * 3 / 2 - dst_y);
+
+    srcbuf = (uint32_t *)malloc (src_stride * src_height);
+    dstbuf = (uint32_t *)malloc (dst_stride * dst_height);
+
     for (i = 0; i < src_stride * src_height; i++)
-        *((uint8_t *)srcbuf + i) = lcg_rand_n(256);
+       *((uint8_t *)srcbuf + i) = lcg_rand_n (256);
+
     for (i = 0; i < dst_stride * dst_height; i++)
-        *((uint8_t *)dstbuf + i) = lcg_rand_n(256);
+       *((uint8_t *)dstbuf + i) = lcg_rand_n (256);
 
-    src_fmt = src_bpp == 4 ? (lcg_rand_n(2) == 0 ?
-        PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8) : PIXMAN_r5g6b5;
+    src_fmt = src_bpp == 4 ? (lcg_rand_n (2) == 0 ?
+                              PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8) : PIXMAN_r5g6b5;
 
-    dst_fmt = dst_bpp == 4 ? (lcg_rand_n(2) == 0 ?
-        PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8) : PIXMAN_r5g6b5;
+    dst_fmt = dst_bpp == 4 ? (lcg_rand_n (2) == 0 ?
+                              PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8) : PIXMAN_r5g6b5;
 
-    src_img = pixman_image_create_bits(
+    src_img = pixman_image_create_bits (
         src_fmt, src_width, src_height, srcbuf, src_stride);
 
-    dst_img = pixman_image_create_bits(
+    dst_img = pixman_image_create_bits (
         dst_fmt, dst_width, dst_height, dstbuf, dst_stride);
 
-    image_endian_swap(src_img, src_bpp * 8);
-    image_endian_swap(dst_img, dst_bpp * 8);
+    image_endian_swap (src_img, src_bpp * 8);
+    image_endian_swap (dst_img, dst_bpp * 8);
 
-    if (lcg_rand_n(8) > 0) {
-        scale_x = 32768 + lcg_rand_n(65536);
-        scale_y = 32768 + lcg_rand_n(65536);
-        pixman_transform_init_scale(&transform, scale_x, scale_y);
-        pixman_image_set_transform(src_img, &transform);
+    if (lcg_rand_n (8) > 0)
+    {
+       scale_x = 32768 + lcg_rand_n (65536);
+       scale_y = 32768 + lcg_rand_n (65536);
+       pixman_transform_init_scale (&transform, scale_x, scale_y);
+       pixman_image_set_transform (src_img, &transform);
     }
 
-    switch (lcg_rand_n(4)) {
-        case 0: repeat = PIXMAN_REPEAT_NONE; break;
-        case 1: repeat = PIXMAN_REPEAT_NORMAL; break;
-        case 2: repeat = PIXMAN_REPEAT_PAD; break;
-        case 3: repeat = PIXMAN_REPEAT_REFLECT; break;
+    switch (lcg_rand_n (4))
+    {
+    case 0:
+       repeat = PIXMAN_REPEAT_NONE;
+       break;
+
+    case 1:
+       repeat = PIXMAN_REPEAT_NORMAL;
+       break;
+
+    case 2:
+       repeat = PIXMAN_REPEAT_PAD;
+       break;
+
+    case 3:
+       repeat = PIXMAN_REPEAT_REFLECT;
+       break;
     }
-    pixman_image_set_repeat(src_img, repeat);
-
-    if (verbose) {
-        printf("src_fmt=%08X, dst_fmt=%08X\n", src_fmt, dst_fmt);
-        printf("op=%d, scale_x=%d, scale_y=%d, repeat=%d\n",
-            op, scale_x, scale_y, repeat);
-        printf("src_width=%d, src_height=%d, dst_width=%d, dst_height=%d\n",
-            src_width, src_height, dst_width, dst_height);
-        printf("src_x=%d, src_y=%d, dst_x=%d, dst_y=%d\n",
-            src_x, src_y, dst_x, dst_y);
-        printf("w=%d, h=%d\n", w, h);
+    pixman_image_set_repeat (src_img, repeat);
+
+    if (verbose)
+    {
+       printf ("src_fmt=%08X, dst_fmt=%08X\n", src_fmt, dst_fmt);
+       printf ("op=%d, scale_x=%d, scale_y=%d, repeat=%d\n",
+               op, scale_x, scale_y, repeat);
+       printf ("src_width=%d, src_height=%d, dst_width=%d, dst_height=%d\n",
+               src_width, src_height, dst_width, dst_height);
+       printf ("src_x=%d, src_y=%d, dst_x=%d, dst_y=%d\n",
+               src_x, src_y, dst_x, dst_y);
+       printf ("w=%d, h=%d\n", w, h);
     }
 
-    if (lcg_rand_n(8) == 0) {
-        pixman_box16_t clip_boxes[2];
-        int n = lcg_rand_n(2) + 1;
-        for (i = 0; i < n; i++) {
-            clip_boxes[i].x1 = lcg_rand_n(src_width);
-            clip_boxes[i].y1 = lcg_rand_n(src_height);
-            clip_boxes[i].x2 = clip_boxes[i].x1 + lcg_rand_n(src_width - clip_boxes[i].x1);
-            clip_boxes[i].y2 = clip_boxes[i].y1 + lcg_rand_n(src_height - clip_boxes[i].y1);
-            if (verbose) {
-                printf("source clip box: [%d,%d-%d,%d]\n",
-                    clip_boxes[i].x1, clip_boxes[i].y1,
-                    clip_boxes[i].x2, clip_boxes[i].y2);
-            }
-        }
-        pixman_region_init_rects(&clip, clip_boxes, n);
-        pixman_image_set_clip_region(src_img, &clip);
-        pixman_image_set_source_clipping(src_img, 1);
-        pixman_region_fini(&clip);
+    if (lcg_rand_n (8) == 0)
+    {
+       pixman_box16_t clip_boxes[2];
+       int            n = lcg_rand_n (2) + 1;
+
+       for (i = 0; i < n; i++)
+       {
+           clip_boxes[i].x1 = lcg_rand_n (src_width);
+           clip_boxes[i].y1 = lcg_rand_n (src_height);
+           clip_boxes[i].x2 =
+               clip_boxes[i].x1 + lcg_rand_n (src_width - clip_boxes[i].x1);
+           clip_boxes[i].y2 =
+               clip_boxes[i].y1 + lcg_rand_n (src_height - clip_boxes[i].y1);
+
+           if (verbose)
+           {
+               printf ("source clip box: [%d,%d-%d,%d]\n",
+                       clip_boxes[i].x1, clip_boxes[i].y1,
+                       clip_boxes[i].x2, clip_boxes[i].y2);
+           }
+       }
+       
+       pixman_region_init_rects (&clip, clip_boxes, n);
+       pixman_image_set_clip_region (src_img, &clip);
+       pixman_image_set_source_clipping (src_img, 1);
+       pixman_region_fini (&clip);
     }
 
-    if (lcg_rand_n(8) == 0) {
-        pixman_box16_t clip_boxes[2];
-        int n = lcg_rand_n(2) + 1;
-        for (i = 0; i < n; i++) {
-            clip_boxes[i].x1 = lcg_rand_n(dst_width);
-            clip_boxes[i].y1 = lcg_rand_n(dst_height);
-            clip_boxes[i].x2 = clip_boxes[i].x1 + lcg_rand_n(dst_width - clip_boxes[i].x1);
-            clip_boxes[i].y2 = clip_boxes[i].y1 + lcg_rand_n(dst_height - clip_boxes[i].y1);
-            if (verbose) {
-                printf("destination clip box: [%d,%d-%d,%d]\n",
-                    clip_boxes[i].x1, clip_boxes[i].y1,
-                    clip_boxes[i].x2, clip_boxes[i].y2);
-            }
-        }
-        pixman_region_init_rects(&clip, clip_boxes, n);
-        pixman_image_set_clip_region(dst_img, &clip);
-        pixman_region_fini(&clip);
+    if (lcg_rand_n (8) == 0)
+    {
+       pixman_box16_t clip_boxes[2];
+       int            n = lcg_rand_n (2) + 1;
+       for (i = 0; i < n; i++)
+       {
+           clip_boxes[i].x1 = lcg_rand_n (dst_width);
+           clip_boxes[i].y1 = lcg_rand_n (dst_height);
+           clip_boxes[i].x2 =
+               clip_boxes[i].x1 + lcg_rand_n (dst_width - clip_boxes[i].x1);
+           clip_boxes[i].y2 =
+               clip_boxes[i].y1 + lcg_rand_n (dst_height - clip_boxes[i].y1);
+
+           if (verbose)
+           {
+               printf ("destination clip box: [%d,%d-%d,%d]\n",
+                       clip_boxes[i].x1, clip_boxes[i].y1,
+                       clip_boxes[i].x2, clip_boxes[i].y2);
+           }
+       }
+       pixman_region_init_rects (&clip, clip_boxes, n);
+       pixman_image_set_clip_region (dst_img, &clip);
+       pixman_region_fini (&clip);
     }
 
     pixman_image_composite (op, src_img, NULL, dst_img,
                             src_x, src_y, 0, 0, dst_x, dst_y, w, h);
 
-    if (dst_fmt == PIXMAN_x8r8g8b8) {
-        /* ignore unused part */
-        for (i = 0; i < dst_stride * dst_height / 4; i++)
-            dstbuf[i] &= 0xFFFFFF;
+    if (dst_fmt == PIXMAN_x8r8g8b8)
+    {
+       /* ignore unused part */
+       for (i = 0; i < dst_stride * dst_height / 4; i++)
+           dstbuf[i] &= 0xFFFFFF;
     }
 
-    image_endian_swap(dst_img, dst_bpp * 8);
+    image_endian_swap (dst_img, dst_bpp * 8);
+
+    if (verbose)
+    {
+       int j;
+       
+       for (i = 0; i < dst_height; i++)
+       {
+           for (j = 0; j < dst_stride; j++)
+               printf ("%02X ", *((uint8_t *)dstbuf + i * dst_stride + j));
 
-    if (verbose) {
-        int j;
-        for (i = 0; i < dst_height; i++) {
-            for (j = 0; j < dst_stride; j++) {
-                printf("%02X ", *((uint8_t *)dstbuf + i * dst_stride + j));
-            }
-            printf("\n");
-        }
+           printf ("\n");
+       }
     }
 
     pixman_image_unref (src_img);
     pixman_image_unref (dst_img);
 
-    crc32 = Crc32_ComputeBuf(initcrc, dstbuf, dst_stride * dst_height);
-    free(srcbuf);
-    free(dstbuf);
+    crc32 = compute_crc32 (initcrc, dstbuf, dst_stride * dst_height);
+    free (srcbuf);
+    free (dstbuf);
     return crc32;
 }
 
-int main(int argc, char *argv[])
+int
+main (int   argc, char *argv[])
 {
-    int i, n = 0;
+    int      i, n = 0;
     uint32_t crc = 0;
 
-    pixman_disable_out_of_bounds_workaround();
-    
+    pixman_disable_out_of_bounds_workaround ();
+
     if (argc >= 2)
-        n = atoi(argv[1]);
+       n = atoi (argv[1]);
 
     if (n == 0) n = 3000000;
 
-    if (n < 0) {
-        crc = test_composite(0, -n, 1);
-        printf("crc32=%08X\n", crc);
+    if (n < 0)
+    {
+       crc = test_composite (0, -n, 1);
+       printf ("crc32=%08X\n", crc);
     }
-    else {
-        for (i = 1; i <= n; i++)
-        {
-            crc = test_composite(crc, i, 0);
-        }
-        printf("crc32=%08X\n", crc);
-
-        if (n == 3000000) {
-            /* predefined value for running with all the fastpath functions disabled  */
-            /* it needs to be updated every time changes are introduced to this program! */
-
-           if (crc == 0x0B633CF4) {
-                printf("scaling test passed\n");
-            } else {
-                printf("scaling test failed!\n");
-                return 1;
-            }
-        }
+    else
+    {
+       for (i = 1; i <= n; i++)
+           crc = test_composite (crc, i, 0);
+
+       printf ("crc32=%08X\n", crc);
+
+       if (n == 3000000)
+       {
+           /* predefined value for running with all the fastpath functions disabled  */
+           /* it needs to be updated every time changes are introduced to this program! */
+
+           if (crc == 0x0B633CF4)
+           {
+               printf ("scaling test passed\n");
+           }
+           else
+           {
+               printf ("scaling test failed!\n");
+               return 1;
+           }
+       }
     }
+
     return 0;
 }